Twist-actuated cap for a beverage container

ABSTRACT

Caps for beverage containers having an upper body defining a first drinking aperture and a first vent aperture and a lower body defining a second drinking aperture and a second vent aperture, where the lower body is couplable to the upper body. In a first configuration of the cap the first drinking aperture is not in fluid communication with the second drinking aperture. In a second configuration the first drinking aperture is in fluid communication with the second drinking aperture, and the first vent aperture is in fluid communication with the second vent aperture, permitting fluid to pass through the combined drinking aperture. The first configuration and the second configuration of the caps being related by rotation of the upper body relative to the lower body.

FIELD

This disclosure relates to lids and caps for beverage containers. More specifically, the disclosed embodiments relate to lids and caps for beverage containers that allow reversible access to the container contents.

BACKGROUND

Beverage containers often include a lid or cap to prevent spilling or leaking of the container contents. For the sake of convenience, some caps include drinking apertures, so that the contents of the container can be enjoyed without removing the cap. And examples of such a beverage container 2 is shown in FIG. 1, including a cap 4 that includes a drinking aperture 6 and a vent aperture 8. The presence of permanent apertures in the cap, however, can make spilling or leaking the beverage more likely. What is advantageous is therefore a cap having both an open and a closed configuration, so that the beverage is accessible when in the open configuration without the necessity of removing the cap, and leaks and spills are minimized when the cap is in its closed configuration.

Additionally, it is often desirable to keep a beverage at a temperature that is either higher or lower than ambient temperature, and so the beverage container may be thermally insulated. However, the caps for such insulated beverage containers may not provide sufficient thermal insulation to adequately maintain the temperature of the beverage in the container. Furthermore, adding sufficient insulation to a cap having an open and closed configuration may then compromise the desired ease of operation of the cap and/or the ability of the cap to prevent leaking.

What is needed is a cap for a beverage container that provides leak prevention and easy operability to access the container contents.

SUMMARY

The present disclosure provides caps for beverage containers, and in particular provides caps for beverage containers that may be twistably transitioned from a closed configuration to an open configuration to permit drinking from the beverage containers.

In some embodiments, the disclosure may provide a cap for a beverage container that includes an upper body defining a first drinking aperture and a first vent aperture, and a lower body defining a second drinking aperture and a second vent aperture, where the lower body is couplable to the upper body. In a first configuration of the cap the first drinking aperture is not in fluid communication with the second drinking aperture, and the first vent aperture is not in fluid communication with the second vent aperture. However, in a second configuration of the cap the first drinking aperture is in fluid communication with the second drinking aperture, and the first vent aperture is in fluid communication with the second vent aperture, permitting fluid to pass through the combined drinking aperture. The first configuration and the second configuration of the cap are related by rotation of the upper body relative to the lower body.

The disclosed features, functions, and advantages of the disclosed caps may be achieved independently in various embodiments of the present disclosure, or may be combined in yet other embodiments, further details of which can be seen with reference to the following description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an isometric view of a prior art beverage container and cap.

FIG. 2 depicts a cap for a beverage container according to the present disclosure, as viewed from slightly above.

FIG. 3 depicts the cap of FIG. 2, as viewed from slightly below.

FIG. 4 depicts the cap of FIG. 2 and its relationship with an exemplary beverage container.

FIG. 5 depicts the cap of FIG. 2 after disassembly into an upper cap body and a lower cap body, showing the inner surfaces of the upper body and the lower body.

FIG. 6 is a side elevation view of the upper cap body of FIG. 5 from the perspective indicated in FIG. 5.

FIG. 7 is a side elevation view of the upper cap body of FIG. 5 from the perspective indicated in FIG. 5.

FIG. 8 depicts the upper cap body of FIG. 5 as viewed from above.

FIG. 9 depicts a horizontal cross-section of the upper cap body of FIG. 8.

FIG. 10 depicts a vertical cross-section of the upper cap body as indicated in FIG. 8.

FIG. 11 depicts the lower cap body of FIG. 5 as viewed from below.

FIG. 12 depicts a horizontal cross section of the lower cap body of FIG. 11.

FIG. 13 depicts a vertical cross-section of the lower cap body as indicated in FIG. 11.

DESCRIPTION OF PREFERRED EMBODIMENTS

A cap for a beverage container according to the present disclosure may comprise an upper body and a lower body, and the cap may be configured so that it is transitionable between a sealed or closed configuration and an open configuration by a rotation of the upper body relative to the lower body.

The cap may be placed in its closed configuration by rotating the upper body relative to the lower body in a first direction as far as the cap mechanism permits. In the closed configuration, the drinking aperture is not in fluid communication with the container interior.

Rotation of the upper body in an opposite second direction may place the cap in its open configuration, in which a drinking aperture in the upper body may be in fluid communication with the interior of the beverage containerm while a ventilation aperture in the upper body that is spaced from the drinking aperture may also be in fluid communication with the interior of the container. In the open configuration, the fluid contents of the beverage container may exit the container via the drinking aperture.

Further rotation of the upper body in the second direction may place the cap in yet a third configuration, in which the upper body and lower body of the cap may be separated, permitting disassembly of the cap for cleaning and/or maintenance.

The cap may further include a sealing element, typically associated with the lower body of the cap, where the sealing element is configured to mate the cap with the beverage container and thereby prevent leaking of the contents of the container.

An illustrative embodiment of a beverage container cap 10 according to the present disclosure is shown in FIGS. 2 and 3. As shown, cap 10 may include an upper body 12 and a lower body 14, and may have a general overall shape that resembles a flattened cylinder.

Cap 10 may be configured to attach to a beverage container 16. Generally, a suitable beverage container 16 may include a container mouth 18 configured to receive cap 10, and cap 10 may be configured to form a seal with container mouth 18, typically by incorporating a sealing element 20 that is configured to mate cap 10 with beverage container 16 and to prevent leaking of the container contents. The sealing element 20 may include internal or external threading, one or more gaskets or o-rings or other features appropriate to effect a connection with the beverage container in order to provide an adequate liquid seal to prevent leaking.

As shown in FIG. 3, sealing element 20 may include, for example, one or more gaskets 22 disposed around a periphery 24 of the lower body 14 of cap 10, where gasket 22 is configured to be compressed by and form a seal with an inner surface 26 of mouth 18 of container 16, as shown in FIG. 4. Alternatively, the sealing element may include threading disposed on the lower body of the cap, where the threading is configured to mate with a complementary threading disposed within the mouth of the container.

Although the present disclosure references examples of beverage containers, the caps of the present disclosure may be used in conjunction with any suitable container, including food containers or other container types. An appropriate container may be double-walled, vacuum-insulated, foam-insulated, or may not include additional thermal insulation. Metals, plastics, or any other suitable material may be used to form a suitable beverage container. In a particular illustrative example, beverage container 16 of FIG. 4 may be formed from a metal, such as steel, and may incorporate thermal insulation in the walls 28 of the container 16 in the form of a double-walled vacuum jacket 30.

The container cap may also include any suitable material, including materials that match the composition of the container. Typically, the caps of the present disclosure incorporate plastics such as thermoset or thermoplastic resins, typically plastics that are food-safe.

Referring to FIGS. 2 and 3, upper body 12 may include an outer cap surface 32 that may be configured for comfortable drinking, with a raised edge 34 that transitions smoothly to a slightly recessed interior of outer cap surface 32.

Outer cap surface 16 may define a first drinking aperture 36 and a first vent aperture 38. First drinking aperture 36 may be disposed adjacent raised outer edge 34, and may extend at an angle into outer cap surface 32 and through upper body 12. First vent aperture 38 may also be disposed adjacent outer edge 32, but may be disposed generally on an opposite side of outer cap surface 32 from first drinking aperture 36. First vent aperture 38 may extend vertically through outer cap surface 32 and upper body 12.

As shown in FIG. 3, lower body 14 may include an inner cap surface 40 which defines a second drinking aperture 42 and a second vent aperture 44. Cap 10 may be constructed so that upper body 12 and lower body 14 are rotatably coupled to one another, and further so that the spatial relationship between upper body 12 and lower body 14 may create a plurality of distinct configurations of cap 10 that are interrelated by a rotation of upper body 12 relative to lower body 14.

For example, cap 10 may exhibit a first configuration, such that when cap 10 is in the first configuration upper cap 12 has an orientation with respect to lower cap 14 so that first drinking aperture 36 is not in fluid communication with second drinking aperture 42. That is, when cap 10 is placed in its first configuration, the cap is closed and the user may not drink from the drinking aperture.

Cap 10 may additionally exhibit a second configuration, in which first drinking aperture 36 is in fluid communication with second drinking aperture 42, and first vent aperture 38 is in fluid communication with second vent aperture 44. When cap 10 is disposed in the second configuration, the fluid contents of an associated beverage container may pass through a drinking passage formed by first drinking aperture 36 and second drinking aperture 42, where the drinking passage thus formed may extend through cap 10 from outer cap surface 32 to inner cap surface 40. Furthermore, while in the second configuration pressure within an associated beverage container may be permitted to equalize via a vent passage formed by first vent aperture 38 and second vent aperture 44 that may extend through cap 10 from outer cap surface 32 to inner cap surface 40. That is, when cap 10 is placed in its second configuration, the interior of the coupled beverage container is vented, and the user can drink the contents of the container via the drinking aperture.

Cap 10 may additionally exhibit a third configuration, in which upper body 12 and lower body 14 may be in physical contact, but are readily separable. In its third configuration, cap 10 may be disassembled, for example in order to thoroughly clean the interior of the cap.

Upper body 12 and lower body 14 may themselves be shaped and/or configured so that the first configuration of cap 10 and the second configuration of cap 10 are related by a rotation of upper body 12 relative to lower body 14. Similarly, upper body 12 and lower body 14 may be shaped and/or configured so that the second configuration of cap 10 and the third configuration of cap 10 are related by a further rotation of upper body 12 relative to lower body 14.

In one illustrative example, upper body 12 and lower body 14 are configured to be couplable via a twist lock mechanism, as illustrated in FIGS. 5-7. In FIG. 5, cap 10 is shown in a disassembled state, with upper body 12 and lower body 14 separated. As separated, an undersurface 46 of upper body 12 is visible, as is an upper surface 48 of lower body 14. In this orientation, various components of a twist lock mechanism 50 are visible.

Twist lock mechanism 50 may include a horizontal radial flange 52 extending outwardly and horizontally from a central portion 53 of undersurface 46. Horizontal radial flange 52 is not continuous, but defines a plurality of notches 54 and 56. Twist lock mechanism 50 may also include a plurality of tabs 58, 60 extending inwardly from a peripheral lip 62 of upper surface 48 of lower body 14. Tabs 58 and 60 are sized and shaped so as to be complementary to notches 54 and 56. That is, when upper body 12 and lower body 14 are oriented so that tabs 58 and 60 are radially and vertically aligned with notches 54 and 56, respectively, the tabs may enter the notches when the upper and lower bodies are urged toward one another.

While cap 10 is exemplified as having a twist lock that includes two tabs and two notches, it should be appreciated that only one tab, or more than two tabs, may also be implemented similarly without departing from the teaching of the present disclosure.

When upper body 12 and lower body 14 are placed in abutment, with tabs 58 and 60 disposed within notches 54 and 56, cap 10 is in its third configuration, as discussed above, and is therefore in an appropriate position to be disassembled by separating upper body 12 and lower body 14, or it may be further secured by rotating upper body 12 relative to lower body 14.

As shown in FIGS. 6 and 7, horizontal radial flange 52 may include plural additional features configured to interact with the tabs of lower body 14. Immediately adjacent to each of notch 54 and 56 is a raised detent 62 and 64. Each tab may be urged over the corresponding raised detent in order to secure upper body 12 to lower body 14. Once tabs 58 and 60 are rotated past the corresponding detents, the detents serve to prevent cap 10 from being unintentionally returned to its third configuration and accidentally disassembled. Raised detents 62 and 64 are given a size and shape appropriate to act as a stop for tabs 58 and 60, but are also given a profile and height appropriate so that a user can urge tabs 58 and 60 over the corresponding detents when by desired rotating upper body 12 relative to lower body 14, and optionally compressing the two bodies of cap 10 together.

Similarly, each portion of horizontal radial flange 52 may include a corresponding tab stop 66, 68, where each tab stop defines a rotation limit for upper body 12 relative to lower body 14, the rotation limit being reached when tabs 58 and 60 contact tab stops 66 and 68, respectively. When upper body 12 is rotated as far as permitted by the interaction between tabs 58 and 60 and tab stops 66 and 68, cap 10 is in its first configuration.

Horizontal radial flange 52 may further include a first depression 70, 72 in the flange itself, the depression being formed in the flange 52 adjacent to the corresponding tab stop. First depression 70, 72 may be sized to accept tab 58 and 60, respectively, and may be defined by the tab stop 66 and 68 at one side and a thickened radial flange portion 74, 76 at the other side, as shown in FIGS. 6 and 7. First depressions 70 and 72 are oriented so that when corresponding tabs 58 and 60 rest within each first depression, cap 10 is in its first configuration.

Each thickened radial flange portion 74, 76 may be proportioned so that it may act to resist (but not prevent) a rotation of upper body 12 relative to lower body 14 that would translate each tab out of its corresponding first depression 70, 72. That is, when cap 10 has been urged into its first configuration, and tabs 58 and 60 are aligned with and disposed within corresponding first depressions 70 and 72, respectively, thickened flange portions 74 and 76 may prevent an unintended transition of cap 10 from its first configuration into its second configuration, or an accidental opening of a closed cap.

Each radial flange may further define a second depression 78, 80, where the second depression is similarly sized to accept the corresponding tab 58 and 60, and may be defined by the corresponding thickened radial flange portion 74, 76 on one side, and the corresponding detent 62, 64 on the other side. Second depressions 78 and 80 are oriented so that when corresponding tabs 58 and 60 rest within each second depression, cap 10 is in its second configuration.

As discussed above, when the components of cap 10 are disposed in its second configuration, the first and second vent apertures are aligned, and the first and second drinking apertures are aligned, such that a fluid can pass through the aligned drinking apertures and the container contents may be accessed by a user.

While the exemplary mechanism disclosed herein employs a counter-clockwise rotation of upper body 12 relative to lower body 14 in order to transition from configuration one to configuration two, and then a further counter-clockwise rotation in order to transition from configuration two to configuration three, it should be appreciated that cap 10 may alternatively be designed and machined so that a clockwise rotation transitions cap 10 from its first to its second configuration, and then further to its third configuration.

As shown in FIG. 7, the planar central portion 53 of undersurface 46 of upper body 12 defines a lower entrance 82 to the first drinking aperture 36, and defines a lower entrance 84 to the first vent aperture 38. Also as shown in FIG. 7, upper surface 48 of lower body 14 defines an upper entrance 86 to second drinking aperture 42 and an upper entrance 88 to second vent aperture 88. When cap 10 is in its second (open) configuration, lower entrance 82 may be substantially aligned with upper entrance 86, and lower entrance 84 may be substantially aligned with upper entrance 86, forming a drinking passage and a vent passage, respectively, through cap 10.

In order to provide an effective seal between apertures when they are substantially aligned, lower body 14 may include one or more resilient seal members disposed on upper surface 48 of lower body 14, such that a resilient seal member surrounds one or more of the apertures defined by upper surface 48. For example as shown in FIGS. 5 and 8, upper surface 48 includes a resilient seal member 90 disposed around a periphery of upper entrance 86 of second drinking aperture 42. Each resilient seal member is composed of a resilient material, that is, a material that can be deformed under pressure and then return to its original shape when the pressure is relieved. Appropriate resilient materials may include silicones and natural and synthetic rubbers.

Resilient seal member 90 is selected to have a thickness so that when tabs 58, 60 are engaged with horizontal radial flange 52, the seal member is compressed between undersurface 46 of upper body 12 and upper surface 48 of lower body 14. The pressure exerted by resilient seal member 90 may be sufficient to provide a liquid-proof seal, but is typically not so great that the pressure would interfere with the ability to rotate upper body 12 relative to lower body 14.

Resilient seal member 90 is disposed closely around a periphery of upper entrance 86. When cap 10 is placed into its second configuration, the lower entrance 82 aligns substantially with upper entrance 86 and the resulting drinking passage is thereby effectively sealed by resilient seal member 90. When cap 10 is rotated into its first (closed) configuration, resilient seal member 90 forms a seal against undersurface 46, which effectively seals the second drinking aperture 42 and prevents any leak of the container contents from aperture 42.

A seal member may be disposed closely around the periphery of upper entrance 84, so that the interior of the beverage container may be vented only when cap 10 is in its second configuration, and the vent aperture would remain substantially sealed in the first (closed) configuration, and in one aspect of the present disclosure, cap 10 includes such a close-conforming seal member around entrance 84. However, it has been determined that when both the vent apertures and drinking apertures are sealed in the first (closed) configuration, the presence of a hot beverage in the associated container 16 may result in a build-up of internal pressure within container 16. This pressure may be suddenly relieved when cap 10 is opened, and may result in an undesired release of the container contents as a result.

For this reason, in an alternative aspect of the disclosure, entrance 84 is surrounded by a resilient seal member 92 that defines an extended arcuate area 94, as shown in FIGS. 5 and 8. The size and shape of resilient seal member 92 is selected so that when cap 10 is in its first (closed) configuration, lower entrance 84 to first vent aperture 38 is disposed within area 94. In this way, the interior of container 16 remains vented even when cap 10 is closed, preventing an undesired buildup of pressure. At the same time, however, in order for the liquid contents of container 16 to leak from vent aperture 38, the fluid would have to enter second vent aperture 44, traverse the narrow passageway defined by resilient seal member 92 between undersurface 46 and upper surface 48 along arcuate area 94, and then pass through first vent aperture 38. This serpentine route is selected to minimize leaks while still preventing a pressure build-up within container 16.

A second extended arcuate area 96 is similarly defined on upper surface 48 by resilient seal member 98, where the arcuate area 96 is configured so that lower entrance 84 to first vent aperture 38 is in fluid communication with area 96 as cap 10 is transitioned from its second (open) configuration to its third configuration for disassembly, thereby helping to prevent the formation of a seal between upper body 12 and lower body 14 that might hinder disassembly of cap 10.

Where container 16 incorporates thermal insulation, it may be advantageous for cap 10 to similarly incorporate thermal insulation, in order to help minimize heat transfer to and from the contents of container 16. Therefore, in one or more aspects of the present disclosure at least one of upper body 12 and lower body 14 incorporates some form of thermal insulation. Any form of thermal insulation that is physically compatible with cap 10 is suitable for use in either upper body 12, lower body 14, or both, including without limitation foamed insulation, air gaps, and internal cells that may be partially or substantially evacuated.

In one aspect of the present disclosure, one or more of upper body 12 and lower body 14 may incorporate a plurality of voids to serve as thermal insulation, such as, for example, voids 100 defined within upper body 12 as shown in FIGS. 9 and 10, or voids 102 defined within lower body 14 as shown in FIGS. 12 and 13. Either or both of upper body 12 and lower body 14 may incorporate a plurality of voids, and the voids may have any suitable geometry, which may be the same or different. As presently exemplified, each of upper body 12 and lower body 14 incorporate a planar array of voids 100 and 102, respectively, that have a hexagonal horizontal cross-section, as shown in FIGS. 9 and 12. More particularly, the plurality of hexagonal voids may be arranged so as to form a honeycomb arrangement, such as a planar close-packed honeycomb arrangement.

Various aspects and examples of a container cap having a twist-actuated seal have been described above and illustrated in the associated drawings. Unless otherwise specified, a cap and/or its various components may, but are not required to, contain at least one of the structure, components, functionality, and/or variations described, illustrated, and/or incorporated herein. Furthermore, unless specifically excluded, the process steps, structures, components, functionalities, and/or variations described, illustrated, and/or incorporated herein in connection with the present teachings may be included in other similar devices and methods, including being interchangeable between disclosed embodiments. The description of various examples is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. Additionally, the advantages provided by the examples and embodiments described herein are illustrative in nature and not all examples and embodiments provide the same advantages or the same degree of advantages.

The disclosure set forth above may encompass multiple distinct examples with independent utility. Although each of these examples has been disclosed in its preferred form(s), and the specific embodiments thereof as disclosed and illustrated herein are not to be considered in a limiting sense, because numerous variations are possible. The subject matter of the examples includes all novel and nonobvious combinations and subcombinations of the various elements, features, functions, and/or properties disclosed herein.

Certain combinations and subcombinations regarded as novel and nonobvious are particularly pointed out throughout this disclosure. Other combinations and subcombinations of features, functions, elements, and/or properties may be claimed, with or without variation in scope, in applications claiming priority from this or a related application.

It will be apparent to those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the present disclosure, which is intended to embrace all such alternatives, modifications and variances that fall within the scope of the appended claims. 

What is claimed is:
 1. A cap for a beverage container, comprising: an upper body defining a first drinking aperture and a first vent aperture; and a lower body defining a second drinking aperture and a second vent aperture, the lower body being couplable to the upper body; wherein in a first configuration of the cap the first drinking aperture is not in fluid communication with the second drinking aperture; and in a second configuration of the cap the first drinking aperture is in fluid communication with the second drinking aperture, and the first vent aperture is in fluid communication with the second vent aperture, permitting fluid to pass through the combined drinking aperture; wherein the first configuration and the second configuration being related by rotation of the upper body relative to the lower body.
 2. The cap of claim 1, further having a third configuration in which the upper body and the lower body are separable, the third configuration and the second configuration being related by a further rotation of the upper body relative to the lower body.
 3. The cap of claim 1, wherein the upper body and the lower body are couplable via a twist lock.
 4. The cap of claim 3, wherein the twist lock comprises a horizontal radial flange on an underside of the upper body, and one or more tabs on an upper side of the lower body; wherein the twist lock is configured so that each tab can pass through a corresponding notch in the radial flange, and that when the upper body and the lower body are in abutment and each tab is radially aligned with its corresponding notch the cap is in the third configuration.
 5. The cap of claim 4, wherein the upper body further comprises a tab stop on the radial flange for each tab, wherein the tab stop defines a rotation limit for the upper body relative to the lower body when each tab contacts the corresponding tab stop.
 6. The cap of claim 5, wherein the radial flange defines a first depression adjacent each tab stop, the first depression being sized to accommodate the corresponding tab of the lower body and being disposed between and defined by the tab stop at one side and a thickened radial flange portion at the other side, such that the thickened radial flange portion resists a rotation of the upper body relative to the lower body that would translate the tab out of the first depression; and wherein the cap is configured so that when each tab is disposed in its corresponding first depression the cap is in the first configuration.
 7. The cap of claim 6, wherein the radial flange defines a second depression for each tab of the lower body, each second depression being sized to accommodate the corresponding tab, and each second depression being disposed between the thickened radial flange portion and a raised detent adjacent to the corresponding flange notch in the radial flange, such that when each tab is disposed in the corresponding second depression the cap is in the second configuration; and when the cap is in the second configuration the first and second vent apertures align, and the first and second drinking apertures align, such that a fluid can pass through the aligned drinking apertures.
 8. The cap of claim 7, wherein each raised detent is configured to contact the corresponding tab and thereby resist a rotation of the upper body relative to the lower body and thereby into the third configuration of the cap.
 9. The cap of claim 8, wherein conversion of the cap from the first configuration to the second configuration includes a counterclockwise rotation of the upper body relative to the lower body, and conversion of the cap from the second configuration to the third configuration includes a further counterclockwise rotation of the upper body relative to the lower body.
 10. The cap of claim 9, wherein the upper body has a planar undersurface the defines a lower entrance to the first drinking aperture and a lower entrance to the first vent aperture; the lower body has an upper surface defining an upper entrance to the second drinking aperture and an upper entrance to the second vent aperture; the lower body includes a first raised sealing member disposed around a periphery of the upper entrance of the drinking aperture, and a second raised sealing member disposed around the upper entrance of the vent aperture; such that an interaction of the tabs of the lower body and the radial flange of the upper body results in the lower body and the upper body being urged towards one another, thereby creating a seal between the planar undersurface of the upper body and each of the first and second raised sealing members.
 11. The cap of claim 10, wherein the seal created by the coupling of the upper body and the lower body substantially prevent fluids from passing through the drinking aperture when the cap is in the first configuration.
 12. The cap of claim 1, wherein one or more of the upper body and the lower body incorporates thermal insulation.
 13. The cap of claim 12, wherein the thermal insulation includes a plurality of voids, each void having a hexagonal horizontal cross-section, and wherein the plurality of voids are disposed in a honeycomb arrangement.
 14. The cap of claim 12, wherein each of the upper body and the lower body incorporates thermal insulation that includes a plurality of hexagonal voids disposed in a planar close-packed honeycomb arrangement.
 15. The cap of claim 1, further comprising a beverage container having a mouth configured to receive the cap.
 16. The cap of claim 15, wherein the cap further comprises a sealing element configured to mate the cap with the container and prevent leaking.
 17. The cap of claim 16, wherein the sealing element includes a gasket disposed around a periphery of the lower body of the cap, where the gasket is configured to be compressed by and form a seal with the mouth of the container.
 18. The cap of claim 16, wherein the sealing element includes threading disposed on the lower body of the cap, where the threading is configured to mate with a complementary threading disposed within the mouth of the container.
 19. The cap of claim 15, wherein the beverage container includes thermal insulation.
 20. The cap of claim 19, wherein the beverage container thermal insulation includes a double-walled vacuum jacket. 